Disk valve.



0.3. HENRY 6; L; E. BRANNING.

DISK VALVE.

APPLICATION FILED JUNE 27 1912.

g gl Patented Mar.11,1913.

3 MEETS-SHEET 1.

C. F. HENRY & L. E. BRANNING.

DISK VALVE- APPLICATION FILED JUNE 27,1912.

j g g ggl D Patented Mar. 11, 1913.

3SHEETSSHEET 2.

O F. HENRY & L. B. BRANNING.

DISK VALVE,

APPLIOATIONI'ILED 1112111211912.

j ggg ggl Patented. Mali 11, 1913.

3SHEETS-SHBET 3.

onijrnn s reens PATENT CHARLES FREMQNT HENRY AND LUCIAN EMMERY BRANNING,OF BGRV ISLAND,

ALBERTA, CANADA.

DISK VALVE.

Specification of Letters Patent.

Patented Mar. l i 933.

Application filed June 27, 1912. Serial No. 706,302.

cable to steam. and other such engines and the object of the inventionis to do away with the various slide and rocker valves, valve gears andeccentrics now in common use on engines and substitute therefor a re-,volving valve whose motion is continuous,

thus causing no jerks or jars, and supplying ''one which may be run ata. very high rate of speed without danger of displacement of the valveor injury to it.

A further object of the invention is to provide a steam tight valvewhich can be easily operated to reverse the engine and one in which theoperator can regulate the lead and cushion of the strokewithoutresetting the valve or removing the steam chest cover.

Referring now to the drawings-Figure 1 represents a side elevation ofthe device. Fig. 2 a plan view of the same. Fig. 3' is an enlargedhorizontal sectional view through the cylinder and the adjoining parts,the section being taken in the plane denoted by the line X-X Fig. 1.Fig. 4 is an enlarged vertical sectional View through the device thesection being taken in the plane denoted by the line Y-Y Fig. 1. Fig.' 5is a rear view of the plate and rotary valve as they appear whendetached from the cylinder. Fig. 6 e perspective view of the valve. Fig.7 is a side elevation of the disk detached. Fig. 8 is a side elevetionofthe cylinder wall showing the location of the port holes therein.

in the drawings like characters of reference indicate correspondingparts in each figure. 1 represents a suitable base plate supporting anengine cylinder 2 and a set or" been ing blocks 3 and 4, in turncarrying a cross shaft 5. The shaft is supplied with a wheel 6 and :1bevel gear 7 the wheel b'eing supplied with an eccentric pin 8.

i 9 is e. crank connecting the pin 8 with a piston rod 10 secured to apiston 11 which operates in. the cylinder. Adjoining the side of thecylinder is formed a steam chember 12 bounded by the wall 2 of the cylin.T he interior of the shaft is threaded to receive an adjgusting screw.20 which bears against the wall 2 of the cylinder. A lock nut 21 issupplied on the screw whereby it can be fastened in any set position.

22 is a bevel gear fixed. on the outer end of the shaft 19 and of thesame size as the bevel gear 7 already referred to. 23 is a counter shaftmounted in suitable brackets 24 and carrying smaller bevel wheels 25 and26 which mesh continuously with the beveled gears T and 22 alreadyreferred to.

The inner end of the shaft 19 rides in a pocket 19 formed in the wall 2of the cylinder, and if desired ball bearings can be placed at thispoint to insure that the shaft will rotate freely.

The disk vslve 18 is supplied with elongated port holes 27 and 28, theport hole 27 passing directly through the valve from side to side,iviule the port hole 28 passes from,

the inner face of the valve. to the circumference thereof, the openingat the circumference being kept over toward the inner face of saidvalve.

The inner face of the plate 17 is hollowed,

out to provide a chamber at :29 which is inclosed by the face of thevalve ands pertition 30 which is fitted within the steziin chamber andis rounded out centrally to receive the disk which rotates partiallyExpansion rings 31 are placed.

within it. around the circumference of the disk wher. it engages withthe partition. It is here pointed out that-the port hole 27 connectswith the chamber 29 while the port hole 28 eiiters the steam chamber 12,having no connection whatever with the chamber 29.'

32 is the live steam feed pipe which admits steam to the engine;Thispipe is connected directly through an opening 33 snpplied in the topof the partition with the chamber 29. I

34- is a reversing disk centered on the inner end of the shaft 19adjoining ironiediately between the inner face or the valve 18 and theside 2 of the cylinder. The disk sin-.13

lever, setthe disk in any desired position.

In order to understand the operation of the device we will'now describeit, assuming at the outset that the lever lOzis in the up right positionand that the disk 34: is in the position as indicated in the'drawingwith the port holes and as above and below the center or as best shownin Fig. 7. iissuming further that-the engine is at what might betermed'rear center, and that the valve 18 is set on the shaft sotha-tthe intake port is 'directly'opposite'the port"37 in'the wall 2 althoughit is to be remembered that the disk intervenes between these points.Upon the operator turning the engine off center the valve will turnslightly as it is forced to ro-.

tats on acount of the beveled gears. Steam is next turned on and theoperator moves the lever forward or backward to either of its extremepositions. The port hole 2'? of the valve gradually becomes connectedwith the opening 37 in the cylinder wall through one or other of theports 35 and 36 in the dish (depending upon the direction it is turnedby the lever). This allows steam toenter the cylinder at-the rear end,consequently, the piston is driven to. the front end. Asthis motiontakes place the valve 18 is also rotated half way around so that theopening 27 is connected withsthe opening 38 through either one or, otherof the openings 35 and 35 in the disk. 7 This admits steam to the frontend of the cylinder.; Simultane' ously the exhaust port 28 becomesconnected with the entrance opening in the cylinder which is at theopposite end to that taking steam. ll hen the reverse disk 34-. standsin the extreme positions a large quantity of steam is admitted to thecylinder and there is then but little lead and cushion to the stroke.Shifting: the reverse disk from either of the extreme positions to thecent-ral' posit-ion admits a smaller amount of steam to the cylinder andconsequently increases the lead and cushion of the stroke. Should theattendant wish to reverse his engine when the lever is over toward theextreme left position he shifts it over past the central posh tiontoward the extreme right position whicl'i roclts the disk 54- on theshaft 19 and throws the port 36 of the disk 34. into registration withthe intake ports 27 and 37 to admit steam behind the piston 11, and ifthe lever should stand in the extremeright position he can reverse it bysimply forcing the lever to the extreme left position, which throwstheport 36 into registration with the port 38 t6 admit steamtherethrough to the front of the piston ll. The set screw 20 allows oneto adjust the pressure of the valve 18 against the face of the reversingdisk.

What we claim as our invention is 1. The combination with a cylinderhaving suitable inlet and outlet ports therein, and a reciprocatingpiston within the cylinder, of a steam chamber to the side of thecylindcrand communicating with the same through the ports aforesaid, apartition within the chamber bearing against the outer wall thereof,said wall being cut awayto form a second chamber between the partitionand the wall, a supply pipe communicating: with the second chamber, andan eX- g haust pipe with the first chamber, a rotatably mounted diskvalve entering both chambers and passing through the partition, saidvalve being supplied with inlet and exhaust ports,

one of said ports passing completely through 9D the valve from face toface and communicating with the second chamber, and the other of saidports passing from the inner face of the valve to the circumferencethereof, at,

which point it opens to the first chamber, a

shift-able disk interposed between the inner face of the valve and thecylinder, said disk being supplied with openings designed in therotation of the valve to connect the ports in the valve with those inthe cylinder, means for rotating the valve one revolution for eachreciprocation of the piston, and a lever connected through a suitablelink with the disk, as and for the purpose specified.

2. The combination with a cylinder having suitable inlet and, outletports therein, and reciprocating piston-within the cylinder, of a steamchamber located to the side of the cylinder and communicating with theinterior thereof through the ports aforesa1d,-110

a partition passing across the chamber and bearing against the outerwall thereof, which wall has its inner face cut away to form a secondchambe between the wall and the partitioman inlet pipe communicatingwith s15 the second chamber, an exhaust pipecommunicating with theoutlet chamber, a rotatable shaft passing across the chambers andmounted in the side of the cylinder and the aforesaid wall of thechamber, a disk valve fixed on the shaft and entering both chambers,which valve passes through the partition which is cut away to receive\it and make a steam tight joint with the circumference thereof, and isfurther supplied with inlet and exhaust ports, the inlet port passingfrom the inner face thereof to the outer, at which point itcommunicates. with the second chamber, and the exhaust port-passing fromthe inner face thereof to the circumference, at which point itcommunicates through a suitable rod with the disk, as and 10 with thefirst chamber, a disk centered on for the purpose specified.

the shaft and interposed between the valve Signed at Bow Island thisninth day of and the cylinder, said disk being supplied December 1911.

.1 with openings designed to connect the valve CHARLES FREMONT HENRY.

ports with those of the cylinder in the rota- LU (HAN EMMERY BRANNING.tion of the valve, means for rotating the t In the presence of shaft onerevolution for each reciprocation C. H. BELL,

of the piston, and a pivoted lever connected E. C. LUDTKE.

